Siebel Authorization No Session

This example illustrates a request that includes authentication credentials (username and password) and a session type of None, which closes the session after the response is sent out:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header>
     <UsernameToken xmlns="http://siebel.com/webservices">user</UsernameToken>
     <PasswordText xmlns="http://siebel.com/webservices">hello123</PasswordText>
     <SessionType xmlns="http://siebel.com/webservices">None</SessionType>
</soap:Header>
<soap:Body>
     <!-- data goes here -->
</soap:Body>
</soap:Envelope>